I've tried searching and haven't found anything concrete yet, does anyone know if the BW4406 is the only transfer case used in the 97's for sure? I think it is but I want to make sure since mine puked its insides all over the road yesterday. I cant complain, its right at 280k miles and its a good running and driving truck still, or at least it was until last night.

I thought I had read somewhere that there were two different transfer cases used in 97 but now I can't find anything definitive....I'm hoping someone can help me out just so I know for sure.

It's a 1997 XLT with a 5.4, electronic shift transfer case which I think they all were...Thanks in advance for any help! With both my trucks down right now my only other vehicle is a 2008 mustang GT convertible...not exactly prime winter transportation in northern Illinois....

 

car-part.com (wrecking yard parts search aggregator) does not show different transfer cases for a '97 Expedition, so, me personally, I'd be content that there's only one.

 

Yes, the transfer case is the main problem.I have a 1998 Exp with 5L engine 4WDA and one day we have found my truck down the street (40 yards) away .
I contacted JASPER supplier and got a OVH case, changed my self, it works .That happened at 160 K, now I have a 330K and changed oil once since , still working good.

VR Mirek